Messing around with Win32 Eventlog in Ruby

mike-wineventlog-geb.rb

# You'll need the win32 stuff and faked gem

require 'win32/eventlog'
require 'win32/mc'
include Win32

require 'time'
require 'faker'

target_rate = 1000
batch_size = 200

EventLog.add_event_source('source' => "Application", 'key_name' => "foo")

e1 = EventLog.open("Application")

sources = ["Fred", "Barney", "Wilma", "Betty", "Tom", "Jerry" ]
events = [EventLog::INFO, EventLog::ERROR, EventLog::WARN]
event_strings = []
50.times { event_strings << Faker::Lorem.sentence(30)	}

start = Time.now.to_f
puts start
1000.times { |i|
  e1.report_event(
    :source  => sources[i % sources.size],
    :event_type  => events[i % events.size],
    :data   => "These are initial messages"	
  )
}
puts Time.now.to_f
invoke_time = (Time.now.to_f - start)/1000
puts "The invoke time: " + invoke_time.to_s

interval = (1.0 - (target_rate * invoke_time))/target_rate

puts "The interval is: " + interval.to_s

puts Time.now.to_s
1000.times {
  batch_size.times { |i|
    begin
      e1.report_event(
        :source      => sources[i % sources.size],
        :event_type  => events[i % events.size],
        :data        =>  event_strings[1 % event_strings.size]
      )
    rescue => e
      puts "Here is the error from in begin: " + e.to_s
      e1.clear
      if e1.full?
        puts "The log is full!!!!"
        e1.clear
      end
    end
  }
  sleep (batch_size * interval)
}

puts Time.now.to_s
puts "The interval was: " + interval.to_s
puts "The interval by " + target_rate.to_s + " is: " + (target_rate * interval).to_s

e1.close

This should be enough to setup once ruby for windows is installed:

gem install win32-eventlog	win32utils
gem install faker	faker gem